Special clamping device for optical lens processing

The invention discloses a clamping device special for optical lens machining, and belongs to the technical field of optical lens machining, the clamping device comprises a workbench, a clamping assembly is arranged at the upper end of the workbench, and a collecting assembly is arranged at the lower end of the workbench; the collecting assembly comprises a protective cover, a collecting hopper is fixedly installed at the lower end of the protective cover and located on the surface of the workbench, a bearing table is fixedly connected to the upper end of the collecting hopper, a screen is obliquely arranged at the lower end of the interior of the collecting hopper, and a discharging pipe is fixedly connected to one side of the surface of the collecting hopper. A control valve is fixedly installed at one end of the surface of the discharging pipe, and the bottom end of the collecting hopper is fixedly connected with an exhaust fan through a pipeline. Through cooperative use of the protective cover, the collect